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revision 649 by schoenebeck, Wed Jun 15 00:01:28 2005 UTC revision 1471 by schoenebeck, Mon Nov 5 13:56:26 2007 UTC
# Line 1  Line 1 
1  Version CVS HEAD (?)  Version CVS HEAD (?)
2    
3    * packaging changes:    * packaging changes:
4        - added autoconf checks for pthread library
5        - added autoconf check for pthread bug found on certain NPTL-enabled
6          glibc versions (see Gentoo bug report #194076)
7    
8      * general changes:
9        - bugfix: the thread used by an editor plugin didn't die when the
10          editor closed
11    
12      * LSCP server:
13        - added support for Windows style path / filenames, however with
14          forward slash path separators instead of backslash
15          (i.e. "C:/foo/bar.gig")
16    
17    Version 0.5.0 (15 October 2007)
18    
19      * packaging changes:
20        - config.h is not going to be installed along with liblinuxsampler's
21          API header files anymore
22        - only the API relevant header (and source) files will be exported to
23          the Doxygen API documentation (explicitly listed in Doxyfile.in)
24        - added completely new XCode project files for Mac OSX which is now
25          capable to execute our autoconf environment, thus no need anymore
26          to maintain the compile time configuration file (osx/version.h) for
27          OSX manually (patch by Toshi Nagata)
28        - fixed buggy boolean --enable-foo / --disable-foo configure script
29          parameters
30        - global.h now only covers global definitions that are needed for the
31          C++ API header files, all implementation internal global definitions
32          are now in global_private.h
33        - atomic.h is not exposed to the C++ API anymore
34        - no need to include config.h anymore for using LS's API header files
35        - fixed warnings in API doc generation
36    
37      * general changes:
38        - replaced the old, confusing MIDI program change mechanism by a
39          flexible MIDI instrument mapper which allows to map arbitrary
40          (MIDI bank, MIDI program) pairs with arbitrary
41          (engine type, instrument file, file index) triplets which will be
42          loaded on the respective channel when such MIDI program change
43          messages arrive, beside that, each entry allows to define a life-time
44          strategy for the instrument, so the user can define whether the
45          instrument should i.e. be permanently loaded (to be able to switch
46          quickly among sounds) or i.e. loaded just on demand when the
47          respective program change arrives (to safe RAM space), as well as a
48          global volume factor for each entry, so the user can adjust the volume
49          dynamic of his mapped instrument collection without having to modify
50          the instrument files, also one can manage arbitrary amount of such
51          MIDI instrument maps and assign each sampler channel individually
52          a certain map, so that i.e. separation of normal instruments and
53          drumkits is possible
54        - new notification events for tracking changes to audio/MIDI devices,
55          MIDI instrument maps, MIDI instruments, FX sends, global volume.
56        - sampler was limited to load max. 200 instruments in the background
57          due to a constant size RingBuffer FIFO which is now replaced by a
58          dynamic (unlimited) size std::list FIFO
59        - added FX sends, these allow to route audio signals to arbitrary audio
60          output channels for being processed by external effect processors
61          (i.e. jack-rack), the send levels are controllable via arbitrary MIDI
62          controllers
63        - global (sampler wide) volume can now be controlled at runtime
64        - Implemented new, improved notification system
65        - fixed compilation errors regarding OSX
66          (patch by Toshi Nagata)
67        - implemented instruments database
68        - added support for escape sequences to the instruments database
69        - added highly experimental support for on-the-fly instrument editing
70          within the sampler's process (by using instrument editor plugins),
71          you'll notice the new "Registered instrument editors:" message on
72          startup, added a new LSCP command:
73          "EDIT CHANNEL INSTRUMENT <sampler-channel>"
74          to spawn a matching instrument editor for the instrument on the
75          given sampler channel, the plugin path can be overridden at compile
76          time with ./configure --enable-plugin-dir=/some/dir
77        - added experimental code for synchronizing instrument editors hosted
78          in the sampler's process to safely edit instruments while playing
79          without a crash (hopefully) by either suspending single regions
80          wherever possible or if unavoidable whole engine(s)
81        - fixed several issues in fundamental "Thread" class: set scheduling
82          policy and priority on thread level, set a minimum stack size for
83          thread (TODO: a reasonable value yet to be tested), bugfix: non-RT
84          threads simply inherited properties of starting thread instead of
85          setting their own policy and priority
86        - minor fix in our automatic stack trace mechanism on crashes, the
87          main process did not wait for the stack trace process to finish
88          its output
89        - fixed some minor memory leaks
90        - reenabled assembly features support, at the moment only for
91          enabling a fast denormal FPU mode (x86 platforms supporting SSE2)
92        - minor assembly fix in x86 features detection (don't use the PIC
93          register, to avoid relocations in the text segment at runtime)
94        - POSIX callback functions of Thread.h are hidden
95    
96      * MIDI driver:
97        - dispatch bank select (MSB and LSB) messages
98    
99      * audio driver:
100        - the ALSA audio output driver parameters now reflect the correct
101          parameter value ranges for the respective selected sound card
102          (patch by Till Wimmer, a bit fixed and extended)
103    
104      * Gigasampler format engine:
105        - if a filter is used and EG2 finishes before EG1, let the voice
106          die when EG2 has finished (this fixes a problem with clicks and
107          voice starvation for some gigs)
108        - playback is no longer disabled during instrument loading
109        - all notes playing on a channel that changes its instrument keep
110          playing with the old instrument until they get a note off
111          command
112        - EG fix: a release value of zero could cause noises or crash
113        - handle MIDI coarse tuning messages (MIDI RPN #0 MSB #2 LSB)
114        - EG fine tuning: when attack is zero the EG starts at a level
115          above max sustain level, which means that there is a decay phase
116          even if sustain is 100%
117        - more EG fixes: the level could sometimes go below zero and cause
118          noises or crashes
119        - minor fix of EGDecay (patch by Toshi Nagata)
120        - fixed compiler error when --enable-override-filter-type was
121          supplied to the configure script (fixes #46)
122        - disk thread: queue sizes are now proportional to CONFIG_MAX_STREAMS
123          instead of a fix value
124        - behavior fix: on MIDI CC# 65 (portamento on / off), 126 (mono mode),
125          127 (solo mode) only kill voices if the respective mode really
126          changed
127    
128      * LSCP server:
129        - fixed compile time error for old Bison versions
130          (i.e. v1.28 found on MacOS 10.4, patch by Toshi Nagata)
131        - parser now supports extended ASCII character set
132          (up to ASCII code 255, i.e. includes now umlauts and accents)
133        - filename arguments in LSCP commands now allow to use escape
134          sequences, that is directly literal as one of: \', \", \\, \n, \r,
135          \f, \t, \v, or as octal ASCII code value like \132, or as hex ASCII
136          code value like \xf2) (fixes bug #24)
137        - the following LSCP commands now also support escape sequences for at
138          least one of their text-based parameters (i.e. name, description):
139          "ADD MIDI_INSTRUMENT_MAP", "MAP MIDI_INSTRUMENT",
140          "SET MIDI_INSTRUMENT_MAP NAME", "SET FX_SEND NAME", "CREATE FX_SEND",
141          "SET DB_INSTRUMENT_DIRECTORY NAME",
142          "SET DB_INSTRUMENT_DIRECTORY DESCRIPTION", "SET DB_INSTRUMENT NAME",
143          "SET DB_INSTRUMENT DESCRIPTION", "FIND DB_INSTRUMENTS",
144          "FIND DB_INSTRUMENT_DIRECTORIES"
145        - returns verbose syntax errors (line and column where syntax error
146          occured, the unexpected character and the actually expected, possible
147          character(s), the latter only if less than 5 possibilities)
148        - made sure that LSCP syntax is not affected by gigedit locale
149          settings
150        - bugfix regarding strings parameter lists: all comma separated lists
151          of strings were treated as being one string containing commas
152          (fixes #57)
153    
154      * Bug fixes:
155        - fixed crash occurring on certain LSCP scripts (Bug 39)
156        - another thread safety fix for lscp "load engine" and "set
157          channel audio output device"
158        - fixed a crash which occurs when reassigning the same engine
159          on a sampler channel with connected MIDI device
160        - fixed a crash which occurs when changing the number of ports of a MIDI
161          device connected to a sampler channel to number less then or equal
162          to the index of the port to which the sampler channel is connected.
163        - The previous bindings were not been disconnected when altering
164          the ALSA_SEQ_BINDINGS parameter. Introduced a NONE keyword for
165          unsubscribing from all bindings (e.g. ALSA_SEQ_BINDINGS=NONE).
166        - The active stream/voice count statistic was incorrect.
167        - notification events were not been sent for some sampler
168          channel changes
169        - added default min and max values to restrict the number of allowed
170          audio output channels and MIDI input ports
171        - the connection to the PCM interface is now closed when destroying
172          an audio output device
173        - files with slash in their path or filename could not be loaded
174    
175      * test cases:
176        - updated and fixed (haven't been touched in a while)
177    
178    Version 0.4.0 (24 November 2006)
179    
180      * packaging changes:
181        - changed deprecated copyright attribute to license; added ldconfig
182          to post-(un)install steps; added devel package for liblinuxsampler;
183          to linuxsampler.spec (RPM)
184        - install necessary development header files for allowing 3rd party
185          applications to link against liblinuxsampler
186        - liblinuxsampler's API documentation can be generated with 'make docs'
187          (Doxygen required)
188        - added benchmark to automatically detect the best triangle LFO
189          implementation (currently either an integer math solution or a
190          di-harmonic approximation), automatic detection can be overriden
191          with --enable-signed-triang-algo=x and --enable-unsigned-triang-algo=x
192          configure script argument though (mandatory for cross-compilation)
193        - do not automatically pick optimized gcc flags if the user already
194          provided some on his own (as CXXFLAGS)
195        - added compile time option to disable processing of All-Notes-Off MIDI
196          messages
197        - added compile time options to allow disabling the various audio and
198          MIDI drivers
199        - fixed automatic GCC CPU switch detection on PPC
200          (patch by Ebrahim Mayat)
201    
202      * Gigasampler format engine:
203        - extensive synthesis optimization
204          (reimplementation of EGs and LFO(s), removed synthesis parameter
205          prerendering and the synthesis parameter matrix in general, splitting
206          each audio fragment into subfragments now where each subfragment uses
207          constant pitch and filter coefficients. The volume coefficient is
208          linearly interpolated inside a subfragment, unless
209          --disable-interpolate-volume is set.)
210        - fine tuning of the EG modulation parameters
211        - improved filter cutoff calculation by adding support for the
212          following gig parameters: Cutoff freq (used when no cutoff
213          controller is defined), Control invert, Minimum cutoff, Velocity
214          curve and Velocity range. The keyboard tracking now scales
215          cutoff frequency instead of resonance.
216        - added support for gig parameter Resonance.
217        - fixed bug in sysex handling (patch by Juan Linietsky)
218        - added global volume attenuation of -9 dB (0.35f) to prevent clipping
219          which can be overridden with --enable-global-attenuation
220        - EG fixes: made the length of "attack hold" stage more
221          accurate. Release stage can now start before attack stage
222          ends. Cancel release didn't work when sustain was zero. Attack
223          time now has a minimal value to prevent clicks.
224        - fixed pitch changes larger than one octave
225        - fixed EG3 (pitch envelope) synthesis which was neutral all the time
226        - implemented portamento mode and solo mode (a.k.a 'mono mode'):
227          all modes can be altered via standard GM messages, that is CC5 for
228          altering portamento time, CC65 for enabling / disabling portamento
229          mode, CC126 for enabling solo mode and CC127 for disabling solo mode
230        - fine tuning of the curves for volume (CC7), pan (CC10 and gig
231          parameter) and crossfade
232        - added support for the "attenuation controller threshold" gig
233          parameter
234        - added smoothing of volume changes caused by control change
235          messages
236        - sample loop parameters are now taken from the DimensionRegion
237          instead of the wave chunk
238        - fixed keyswitching for v3 gigs with a number of keyswitch splits
239          not equal to a power of two
240        - reimplementation of the filter algorithm. The new filter is more
241          accurate and supports all gig filter types, including bandreject
242          and lowpass turbo.
243        - real support for 24 bit samples - samples are not truncated to
244          16 bits anymore
245        - support for aftertouch (channel pressure, not polyphonic
246          aftertouch)
247        - LFO1 behaviour fixed (dampening from max volume instead of
248          amplifying from 0)
249    
250      * LSCP server:
251        - fixed application exit on broken pipe error (fixes bug #20)
252        - fixed the notification messages delay due to lack of
253          network activity (fixes bug #26)
254        - fixed parser bug which occured on space(s) within device parameters
255          (e.g. "SET AUDIO_OUTPUT_CHANNEL_PARAMETER 0 0 SOMEPARAM='foo bar'")
256    
257      * audio driver:
258        - added aRts audio output driver (by no means RT safe)
259    
260      * MIDI driver:
261        - fixed legacy sysex code which caused dispatching of MIDI SysEx
262          messages several times instead of once
263        - API extension for MIDI drivers which already supply exact time stamps
264          for events (i.e. for offline rendering based MIDI drivers)
265        - added checks for bad MIDI data
266    
267      * linuxsampler application:
268        - show available sampler engine types on startup
269    
270      * general changes:
271        - support for muting sampler channels and solo mode of the same, two new
272          LSCP commands ("SET CHANNEL MUTE" and "SET CHANNEL SOLO") and two new
273          fields ("MUTE" and "SOLO") for command "GET CHANNEL INFO" were
274          introduced for this, the behavior is the same like on a mixer console
275          (patch by Grigor Iliev, a bit adjusted). Also added configure option
276          --enable-process-muted-channels which can be used to enable the
277          processing of muted channels.
278        - support for sostenuto pedal
279        - support for monitoring the total number of active voices
280          (new LSCP commands: GET TOTAL_VOICE_COUNT, GET TOTAL_VOICE_COUNT_MAX,
281          SUBSCRIBE TOTAL_VOICE_COUNT, UNSUBSCRIBE TOTAL_VOICE_COUNT)
282        - fixed some memory management errors
283        - fixed some concurrency problems that could lead to crashes when
284          LSCP commands were executed
285        - fixed crash when instrument loading failed previously on the same
286          sampler channel (fixes bug #36)
287    
288    Version 0.3.3 (15 July 2005)
289    
290      * packaging changes:
291        - fixed compilation with gcc 4.0
292    
293      * Gigasampler format engine:
294        - LFO preprocessing was performed even though the respective LFO was
295          disabled by the instrument patch (minor efficiency fix)
296        - if period time of chosen audio device is too small (< MIN_RELEASE_TIME)
297          for volume ramp downs in the same fragment (needed for current voice
298          stealing implementation) then simply inform the user with a warning
299          about possible click sounds and reduce the volume ramp down
300          appropriately instead of cancelling the audio device connection
301    
302    Version 0.3.2 (24 June 2005)
303    
304      * packaging changes:
305      - updated autotools build files to compile on OS X      - updated autotools build files to compile on OS X
306        (conditional compilation of CoreMIDI and MidiShare drivers)        (conditional compilation of CoreMIDI and MidiShare drivers)
307      - hand-crafted assembly optimization code can be disabled with      - hand-crafted assembly optimization code can be disabled with
308        './configure --disable-asm' (definitely not recommended)        './configure --disable-asm' (definitely not recommended)
309        - fixed 'make dist' rule to include all necessary files
310        - require automake (>= 1.5) for 'make -f Makefile.cvs'
311          (due to 'dist-bzip2' automake option)
312    
313    * Gigasampler format engine:    * Gigasampler format engine:
314      - support for the gig parameters for "release velocity response" curves      - support for the gig parameters for "release velocity response" curves
# Line 12  Version CVS HEAD (?) Line 316  Version CVS HEAD (?)
316      - volume of release triggered samples now depends on note-on velocity,      - volume of release triggered samples now depends on note-on velocity,
317        note length and gig parameter "release trigger decay" instead of        note length and gig parameter "release trigger decay" instead of
318        note-off velocity.        note-off velocity.
319      - revised voice stealing (fixes crash caused by voice stealing)      - revised voice stealing
320              (fixes crash and endless loop caused by voice stealing)
321        - don't reset scale tuning on instrument or audio output device change
322        - handle key group conflicts right at the beginning of each fragment
323          instead of when the respective voice is actually launched
324          (fixes undefined behavior if stolen voices belonged to a key group -
325          this case was followed by a "killed voice survived" error message)
326        - fixed minor issue with null/silence samples
327          (those stole voices even though they don't need a voice at all which
328          resulted in "voice stealing didn't work out" messages)
329        - don't reset volume, pan, pitch and MIDI controller values on
330          instrument or audio output device change
331    
332    * LSCP server:    * LSCP server:
333      - fixed some crashes (patch by Grigor Iliev, fixes #19)        - fixed some crashes (patch by Grigor Iliev, fixes #19)
334        - fixed LSCP event "CHANNEL_INFO" notification
335          (e.g. did not notify on volume changes or MIDI program change events)
336    
337      * linuxsampler application:
338        - added command line parameters --lscp-addr and --lscp-port to override
339          default IP address and port of LSCP server
340    
341  Version 0.3.1 (24 May 2005)  Version 0.3.1 (24 May 2005)
342    

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